Multiple choice

Which is used to control butterfly caterpillars

  1. Bacillus anthracis

  2. Candida albicans

  3. Clostridium tetani

  4. Bacillus thuringiensis

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bacillus thuringiensis (Bt) produces toxins that are lethal to specific insect larvae, including butterfly caterpillars. The other options are pathogenic bacteria or fungi not used for this purpose.